Number Series
Q1.
0,2,6,12,20 ________
(a) 28
(b) 25
(c) 30
(d) 32
Solution.c
In this pattern is n2 - n
where n is natural numbers (1,2,3,--------)
So, ans. is 30
Solution
Q2.
0,6,24,60,120 , ______
(a) 210
(b) 120
(c) 220
(d) 230
Solution.a
In this pattern is n3 - n
So, ans. is 210
Solution
Q3.
6,0,10,4,14 _________
(a) 6
(b) 8
(c) 9
(d) 7
Solution. b
In this pattern is (2x + 4) and (2x - 4) alternately
So, Ans. is 8
Solution
Q4.
2,6,12,20,30, ______
(a) 42
(b) 44
(c) 45
(d) 46
Solution.a
1 x 2 = 2
2 x 3 = 6
3 x 4 = 12 and so ans.is 42
Solution
Q5.
3,15,35,63,99 _______
(a) 144
(b) 142
(c) 149
(d) 143
Solution.d
Pattern (even)2 - 1, n = 2,4,6,---------
So,Ans. is 143
Solution
